Manifold heater



M. L. ROTH,

MANlFOLD HEATER. I APPLICATION FILED APR. 22. 19-18. 1,31 1,41 7, Pavteqied J u-ly 29, 1919':

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M. L. BOHL.

, MANIFOLD HEAIER. APPLICATION FILED APR. 22. 1918.

Patented July 29, 1919.

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Ul lliTE STATES FATE??? @FFtQE.

MARTIN LUTHER ROTH, OF WILKES-BARRE, PENNSYLVANIA.

MANIFOLD-HEATER.

fold-Heaters, and i do hereby declare the following to be a full. clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

1 i This invention relates to carbureting ap- JaratUs and particularly to a form ot car lmreting devicewhich will facilitate the starting of internal combustion engines and will reduce the amount of fuel gasolene consumed in the operation of motors of this Y type in cool climates and cool seasons of the yea and at high altitudes.

it is one of the objects of the present invention to provide a simple and etiicient device involving means for supporting combustion of any suitable fuel in liquid, solid or gaseous state in juxtaposition to the intake manifold engine so that the carbureted air passing to the combustion cylinders of the engine will be heated, thereby making a more perfectcombustion and increasing), the apidity of ignition. It is another object of the invention to eliminate various types of intricate devices for heating c'arbureted air passing to the cylinders, such,

for instance, as devices utilizing hot. water derived from the circulating; system. of the motor, it being, an object of this invention to provide for the ready and etiicient heating of the air passing to the combustion cylinders for starting the same and also-to provide for the continued heating of the carbureted air while the engine is running through heat derived from the. burned gases.

ll'ith theseand other objects in view as will be apparent to those versed in the art,

the invention consists in the construction, combination and in details and arrange ments of the various elements as more articularly set torth in the following speci ca- I tion .relative to the'emb'odiments of the inventioi'i, illustrated in the accompanying drawing in which:

Figure l is a side elevation of the portion.

Specification of Letters latent. Potent al July 29, 1919,

Application filed April 22, 1918.

Serial No. 230,072.-

of an internal combustion engine of this form, the device bein shown as made integral with the intake manifold of the en gine and parts of the device broken away;

Fig. :2 is a central, vertical section of Fig. 1.

Fig. 3 is a side elevation partly in section of a form of thedevice in which it is constructed in sections applicable to the intake manifolds which is shown in dotted lines;

Fig. 4 is an edge view of the device shown in Fig. 3 hulking toward the right. end side;

Fig. 5 is a section on line 5-5 of Fig. i;

Fig. 6 is a section on line (St3 of Fig. 3; and.

Fig. 7 is a section on line 77 of Fig. 6.

The invention is capable of being readily embodied or combined with the various types of carbureting apparatus including the carbureter and fuel intake manifold of internal combustion engines and is capable of being constructed of various and appropriate materials having regard to expense, method of manufacture and to manner of utilization.

My invention resides in the combustion of any suitable fuel, as for instance, gasolene, kerosene, naphtha. alcohol, wood, coal or other combustible fuel in such juxtaposition to the intake manifold of the motor thatthe carbureted air passing to the enginecan be heated prior to the starting of the engine by the ignition and combustion of the fuel which is adapted to be contained in a burner or receiver, which as above indicated, may be of various construction and material and in Fig. l of the drawing is here shown as a chamber, receiver or pot '2 of suitable depth proportions and form preferably to stirround the intake manifold 3 having the usual supply branches .l leading to the intake of the engine, the foot of the inanit'old being connected as at 5 to a carbnreter 6 of any suitable design. in Fig. i, the

formed with this intake manifold and is provided at one side. so as to be conveniently burned in the burner may be supplied, the

m sza fuel collecting in the bottom of the chamber and. when ignited the fumes of combustion are directed from the top of the chamber through a flue 10 preferably connected to the exhaust manifold 11 of the motor. In this form or en'ibodimcnt of the invention the bottom of the chamber is shown as-provided with an aperture 12 to which is connected a supply pipe 13 having a three-way valve 14: controlling the flow of gasolene from any source of supply, as for instance, from the carbureter 6 to which the pipe 13 is connected. By utilizing a three-way valve the flow of gasolene from the carburetor to the burner chamber 2 can be entirelyout off or may be established so that the desired quantity of asolene can flow to the burner chamber and again the valve can be set so as to drain both the carbureter and the chamber. 4

, Referring now to the embodiment of the invention shown in Figs. 3 to 7, the device is shown as so made as to be applicable when properly designed to conform to the various types of given manifolds 3 shown in dotted lines which may be-already in use with motors, the object of this form of the invention being to provide for the attachment of the burner to intake fines already constructed or in service. In this embodiment the casing or chamber is shown as; made into two separable sections 2 and 2 one for the front and one for the back, these being provided with marginal ears or lugs 2 to receive fastening means, as for instance, bolts 15. The sections obviously are given a contour conforming to that of the manifold 3 to be fitted and preferably to make air-tight joints at the'points of contact between the sections 2 and 2 and the surface of the manifold to be fitted. In this 'form of the device, it is desirable to provide for the prevention of leakage of the gasolene or other fuel which may be admitted. into the interior of the chamber and this may be accomplished in various ways, one of which is shown as by the ten mation of interior pockets 16 and l6 by the extension. upwardly of interior walls 'approximately fitting the adjacent vertical portion of the manifold 3, the front section 2 having the removal closure to fill the igniting aperture 7 and for the purpose of permitting an equalization of the level of the fuel in the pockets 16 and 16 in the front and rear sections of the burner communication is afforded between these two pockets in the present instance by means of a hollow screw 17, Figs. 6 and 7, which is screwed through the front section 2" in a plane below the level and preferably adjacent the bottom of the burner the inner end of the screw passing through the threaded central walls forming the pockets. The

bore 18 of the screw extends considerable length thercalong and is intersected at one point with a radial port or aperture 19 which is exposed for instance in the pocket 16 and enables the oil therein to flow through the bore 18 into the other pocket If desired this form of rarbureter may be provided with an aperture 12 as is shown in Fig. 1 for connection to a source of supply of fuel. I

In the operation of the device a supply of fuel can be introduced through the igniting aperture 7 or if the burner is connected to a source of supply fuel can be provided through the aperture 12. After the fuel has been introduced in suitable quantity the operator having removed the closure 8 applies means for igniting the fuel in the burner chamber. The heat produced by the combustion'of the fuel istransferred to the carbureted air passing in througlrthe intake manifold 3 to the cylinders of the engine.

, From this, it will be seen that the engine By connecting the burner chamber 2 to the exhaust manifold, it will be seen that after the engine has started the heated gases will flow in part into the burner chamber-and the heat of the gases will tend to keep the manifold 3 heated and will thus warm the communicating fuel.

hat I claim is:

1. The combination with the fuel' intake manifold of an internal combustion engine, of 'a container for a supply of combustible material which when ignited will .burn in juxtaposition to, and heat the intake pipe and thereby the passin fuel in the intake, the container surroun ing the contiguous body of the manifold, and means for connecting the container to the exhaust manifold of the motor.

2. The combination with the fuel intake manifold of an internal combustion engine, of a container for a supply of combustible material which when ignited will burn in juxtaposition to, and heat the intake pipe and thereby the passing fuel, means for con necting the container to the exhaust manifold of the motor, and means for charging the container.

3. In combination with an internal combustion engine having an intake pipe and an exhaust pipe, a heater comprising a chamber surrounding the intake and having an aperture for ignition of a charge of fuel therein, and a draft pipe connecting said chamber and t-he exhaust pipe,

4. In combination with an internal comi J and 2.118 chain's V.

bustion engine having an intake pipe and an 011-0 ppiy,

5 exhaust pipe, a heater comprising a chamin testimony when her surrounding the intake and having an aperturs for ignition of 11 charge of fuel MART 

